Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
(b) On September 17, 2026, Barbara G. Littlefield informed the Board of Directors (the "Board") of American Superconductor Corporation of her resignation from the Board, effective at 12 p.m. eastern time on Friday, September 18, 2026.